CGSC Strain#: 5492
Strain Designation: Hfr Hayes     
Source of Strain: W. Hayes
Sex: Hfr
Point of Origin#: 1
Map Position: 96.80
Direction of Marker Transfer: Clockwise
Chromosomal Markers: secA207(aziR)
,
relA1,
rpsL100(strR)
,
spoT1,
metB1,
creC510Strain Comments: - This is the original Hfr Hayes, received from R. C. Clowes as RC715.
- spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- creC510-- The constitutive phenotype is due to an R77P amino acid substitution
- creC510 was formerly called phoM510
- secA207(aziR) was formerly called azi-7
- aziR = azide resistance
- Const = constitutive
- strR = streptomycin resist.
References: - Hayes, W. 1953. The mechanism of genetic recombination in Escherichia coli. Cold Spr.Harb.Symp.Quant.Biol. 18:75-93